Maris-Tech Ltd. - ordinary shares (MTEK)

Gainers Tungray Technologies (NASDAQ: TRSG) shares increased by 14.4% to $1.59 during Friday's after-market session. The market value of their outstanding shares is at $22.8 million.

As the regular session of the US market on Friday comes to an end, let's delve into the after-hours session and discover the top gainers and losers shaping the post-market sentiment.

This morning’s jobs data came in weaker than expected, while hourly pay outperformed estimates—raising early concerns about stagflation.

For a growth investor, one of the top advantages of A-rated penny stocks is that they have the potential for oversized profits.

Gainers OpGen, Inc. (NASDAQ: OPGN) shares rose 432% to $1.79 in pre-market trading. Opgen said on Oct. 6, unit Curetis GMBH received payment of 750,000 euros related to the sale of certain Unyvero A50 Systems by Curetis to a strategic partner.

Gainers SuperCom Ltd. (NASDAQ: SPCB) shares jumped 89% to $0.6805, after falling 13% on Monday.